Help me 3a and 3b **Unit 2: Newton’s Laws and Energy****Module 3: Work, Kinetic Energy, and Gravitational Potential Energy**---**3a. A skier starts from rest at the top of a frictionless incline of height 20.0 m, as shown in the figure. At the bottom of the incline, the skier encounters a horizontal surface where the coefficient of kinetic friction between skis and snow is 0.184. Neglect air resistance.****Question**: Find the skier’s speed at the bottom when they reach point B.1. **Notice**: - Position vs. speed change - Object: Skier - Sketch provided showing the skier starting from rest at the top and moving down the incline.2. **Examine**: - Vectors (Notation: \( NC: F_a, f_k, T \, ? \)) - Diagram: Skier depicted at various stages of descent.3. **Write known/unknown variables**: - Known: - \( h = 20.0 \, m \) - Unknown: - \( v_f \) - Equations provided: \( W_{NC} = ME_f - ME_i \) or \( ME_i = ME_f \)---**3b. Now determine how far the skier travels on the horizontal surface before coming to a stop.**1. **Notice**: - Position vs. speed change - Object: Skier2. **Examine**: - Vectors - Diagram: Skier moving from point B to C on the horizontal path.3. **Write known/unknown variables**: - Known: - \( \mu_k = 0.184 \) - \( v_i \) from part a - Unknown: - \( d \) - Equations provided: \( W_{net} = KE_f - KE_i \)(Each section includes sketches of the skier’s motion and relevant variables for the calculations.)

at point A, height = hA= 20m speed at point A = VA=0m/s at point B, height = hB= 0 m

ational Potential Energy A skier starts from rest at the top of a frictionless incline of height 20.0 m, as shown in the figure. At the bottom of the incline, the skier encounters a horizontal surface where the coefficient of kinetic friction between skis and snow is 0.184. Neglect air resistance. Find the skier's speed at the bottom when they reach point B. 19.8 m/s ptice position s. speed change sketch T WNC= ME,-ME or ME, = ME, %3D %3D object_ kamine FBD E

ational Potential Energy A skier starts from rest at the top of a frictionless incline of height 20.0 m, as shown in the figure. At the bottom of the incline, the skier encounters a horizontal surface where the coefficient of kinetic friction between skis and snow is 0.184. Neglect air resistance. Find the skier's speed at the bottom when they reach point B. 19.8 m/s ptice position s. speed change sketch T WNC= ME,-ME or ME, = ME, %3D %3D object_ kamine FBD E

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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